Coax cable maximum bend radius expressed as a multiple of the cable diameter is what value?

Coax cable maximum bend radius expressed as a multiple of the cable diameter is what value?

• A. 10 times
• B. 5 times
• C. 15 times
• D. 20 times

Answer: (A)

Bend radius for coax is expressed as a multiple of the cable’s outer diameter to protect the cable’s geometry and maintain consistent impedance. If you bend too tightly, the shield and dielectric can distort, shifting impedance and increasing losses or stress on the jacket. The standard guideline is to avoid tight bends and keep the bend radius at least ten times the cable diameter. So, ten times the diameter is the value that matches this widely used rule of thumb. A bend tighter than that (five times) risks degradation, while larger radii (fifteen or twenty times) are more conservative but not the typical requirement.

Bend radius for coax is expressed as a multiple of the cable’s outer diameter to protect the cable’s geometry and maintain consistent impedance. If you bend too tightly, the shield and dielectric can distort, shifting impedance and increasing losses or stress on the jacket. The standard guideline is to avoid tight bends and keep the bend radius at least ten times the cable diameter. So, ten times the diameter is the value that matches this widely used rule of thumb. A bend tighter than that (five times) risks degradation, while larger radii (fifteen or twenty times) are more conservative but not the typical requirement.